Barcode Mill turns a Web page into a unique e-document tagged with a different barcode each time its loaded.
Use it for On-Line Sales, Tickets, Document identification, Vouchers, Certificates and more
Try it here now... it is free.
Enter the data you want to appear in the barcode. Select the barcode type (Code 128 or Code 39 are popular types) and click. When the page is reloaded the barcode you selected appears.